There's very little reason to believe this game will result in anything other than an Argentina win. Argentina are yet to concede a goal and have been the most effective tournament team in world football over the course of the last three years. Lautaro Martínez, whose contributions have been subpar for a while, looks on top form, which if sustained will make a monumental difference to the potency of the team's attacking threat.
In both of their prior two tournaments under Lionel Scaloni, Argentina have started slowly and have grown into the competition, so given they've won both of their opening fixtures this time around it bodes well for the development of their performances.
Peru, on the other hand, have not looked as strong as they have in recent editions of this tournament and arguably should have lost their opening game where they conceded 65% of the possession and 11 shots to Chile. They've had a fairly miserable tournament and it's hard to imagine them turning that around against the world champions. Argentina 3-0 Peru.